Depending on its size and depth, cracks in cherry wood kitchen cabinets can be repaired with liquid furniture, wood filler or furniture wax. Apply the filler with the handle of a plastic utensil and scrape off what gets on the surface of the cabinets. After the filler dries, gently sand the crack without disrupting the surrounding surface. Finally, stain the filler to match the color of the cherry wood cabinets.
Prior to applying the filler, clean the crack and surrounding area with soap and water, then fill the crack with wood glue and wood shavings. Make sure to leave sufficient time for the filler to dry prior to sanding. Clean the wood dust during and after sanding to prevent it from creating an uneven surface. Even if planning to stain the wood, try to use a filler that best matches the cherry wood color of the cabinets.
When staining, use a small, agile paintbrush to reach the crack and the surrounding area as necessary to avoid inconsistent coloring. For minor cracks, it may be possible to cover over with a scratch repair pen, appropriately colored crayons or magic markers, coffee grounds or black tea that can approximate the kitchen cabinet's cherry wood color.